Hair foil vs kitchen foil
Kitchen foil can be used for highlights; both are aluminium. The difference is in the preparation. Hair foil is 12–20 µm thick, cut to salon widths, embossed for grip, and pre-cut or interfolded so that a sheet is taken with one hand. Kitchen foil is a wide, smooth roll, cut and folded for every section.
Comparison table
| Hair foil | Kitchen foil | |
|---|---|---|
| Material | Aluminium alloy, annealed soft | Aluminium alloy, annealed soft |
| Thickness | 12–20 µm, stated in microns | Varies by product; rarely stated in microns |
| Width | Salon widths: 100 mm and 120 mm rolls; sheets from 5 × 11 in | Wide household widths |
| Surface | Smooth or embossed | Smooth; one bright side and one matt side |
| Format | Pop-up sheets, pre-cut sheets or narrow rolls | Roll only |
| Dispensing | One sheet at a time, or a narrow roll in a cutter box | Tear from a wide roll |
| Colour and print | Silver, coloured or printed | Silver |
Comparing them yourself
A claim that hair foil is “thicker” or “stronger” than kitchen foil means little without figures, because kitchen foil is sold in more than one gauge and few packs state it. Our hair foil is made in 12–20 µm, with the gauge chosen for each order. The honest comparison is to measure a sample of each with the same instrument on the same day.
You can make the comparison without a micrometer. Cut a piece of the same size from each foil and weigh them: for aluminium, weight per area is proportional to thickness. How we measure our own foil is on hair foil thickness and alloy.
Why the differences matter at the chair
A colourist places dozens of foils in one service. The differences that matter are the ones that repeat with every foil.
Width. A kitchen roll is several times wider than a highlighting section. Each piece has to be cut down or folded in, which takes time and leaves a thick folded edge. Hair foil is already the width of the work.
Length. A pre-cut or pop-up sheet is the right length before it is picked up. A kitchen roll is torn by eye.
Grip. Most hair foil is embossed, so it holds the hair and the neighbouring foil. Kitchen foil is smooth. The grip gained from embossing is measured on hair foil emboss patterns compared.
One hand. A pop-up sheet is taken with one hand while the other holds the section and the comb. A kitchen roll needs both.
Consistency. Hair foil is specified: a thickness, a size, a count. The next box is the same as the last.
Is kitchen foil unsafe?
No. Kitchen foil is aluminium foil made for contact with food, and there is nothing in it that makes it unsafe to fold around hair. Claims that kitchen foil contains harmful metals, or that only “professional” foil is safe with bleach, have no basis that we know of, and we do not make them.
The case for hair foil is practical. It is faster, it is the right size, it grips, and it is the same every time. For printed or coloured hair foil there is one real safety question, the ink, and that has its own test: printed hair foil ink vs bleach.
If you want to feel the difference, request samples and place a section with each.
FAQ
Can I use kitchen foil for highlights?
Kitchen foil can be used for highlights; it is aluminium foil, as hair foil is. It is wider than a section needs, smooth, and sold on a roll, so each piece has to be cut and often folded to size. That is workable for a few foils at home and slow for a full head in a salon.
Is hair foil thicker than kitchen foil?
Hair foil and kitchen foil overlap in thickness, so one is not simply thicker than the other. Hair Foil Factory makes hair foil in 12–20 µm. Standard kitchen foil is sold in a range of gauges and is rarely labelled in microns, so the only reliable comparison is to measure both.
Is hair foil the same aluminium as kitchen foil?
Hair foil and kitchen foil are made from the same family of aluminium alloys, rolled thin and annealed soft. Hair Foil Factory uses alloy 8011 in the O temper. The metal is not what separates the two products; the width, the surface and the cut format are.
Why is hair foil more expensive?
Hair foil costs more per square metre than kitchen foil because more is done to it. It is slit to narrow widths, often embossed, cut into sheets or interfolded, counted, and packed in a dispenser box. It is also made in much smaller runs than a supermarket roll.